The Lao government is "profoundly saddened" by the deaths of foreign tourists from drinking alcohol contaminated with methanol and pledged to prosecute those responsible.

A U.S. citizen has died in a tourist town in the Southeast Asian nation of Laos following reports that multiple travelers suffered suspected cases of alcohol poisoning in the same town after possibly consuming tainted drinks. A State Department spokesperson confirmed to CBS News that the death occurred in Vang Vieng.

The U.S., Australia and U.K. have issued warnings for travelers in Vang Vieng after several tourists died in a suspected methanol poisoning outbreak.

Two Danes, two Australians, a Briton and an American died from methanol poisoning after visiting Vang Vieng, an idyllic town that is popular with foreign backpackers.

The father of an Australian teenager who died from suspected methanol poisoning while on a backpacking holiday has issued a plea to the Laos government to fully investigate his daughter’s death and ensure such incidents don’t happen again.

A New Zealand citizen who fell ill after drinking contaminated alcohol in Laos has returned home following the deaths of six tourists due to supected methanol poisoning. New Zealand’s foreign ministry had earlier reported that one of its citizens fell ill in Laos and was believed to be a victim of the poisoning.

Six travelers have died from suspected methanol poisoning in Vang Vieng, Laos. Most of these incidents occur in Asia, according to Doctors Without Borders.